mirthless
adjective
[ ˈməːθlɪs ]
• (of a smile or laugh) lacking real amusement and typically expressing irony.
• "he gave a short, mirthless laugh"
Similar:
humourless,
unamused,
grim,
glum,
moody,
sour,
surly,
dour,
sullen,
sulky,
gloomy,
scowling,
glowering,
sombre,
lugubrious,
mournful,
melancholy,
melancholic,
doleful,
miserable,
dismal,
grumpy,
churlish,
grouchy,
